<select name="filter">
  <option value="guide">Guide</option>
  <option value="general">General</option>
  <option value="postID">Post number</option>
  <option value="name">Name</option>
  <option value="uniqueID">Unique ID</option>
  <option value="tripcode">Tripcode</option>
  <option value="capcode">Capcode</option>
  <option value="pass">Pass Date</option>
  <option value="email">Email</option>
  <option value="subject">Subject</option>
  <option value="comment">Comment</option>
  <option value="flag">Flag</option>
  <option value="filename">Filename</option>
  <option value="dimensions">Image dimensions</option>
  <option value="filesize">Filesize</option>
  <option value="MD5">Image MD5</option>
  </select>
<div></div>
